Trustworthy, encrypted, command-line TOTP/HOTP authenticator app with import functionality.

Time-Based One-Time Password (TOTP) and HMAC-Based One-Time Password (HOTP) library for Go.

web service and api with free phone numbers from various providers in one place

Generate TOTP secrets and codes to use while making and testing software secured by TOTP MFA/2FA.

HMAC SHA1/SHA256/SHA512 in modern C++11. Includes time tokens and MetaTrader (MQL5) support | Библиотека HMAC для C++ и MQL5: поддержка SHA1, SHA256, SHA512 и токенов по времени

jCat One Time Password Manager

A TOTP code generator for the CLI that securely stores secrets in the keychain

Python script to dump 2fa pin from Android FreeOTPPlus (FreeOTP+) export file freeotp-backup.json

A time-base one time password generator for Mac (TOTP)

TOTP & HOTP. SHA1 & SHA256. Time based or counter based. Minimal implementation for FPC.

Local TOTP Generator is an offline tool for generating time-based one-time passwords (TOTPs) using the Web Crypto API. With customizable settings for digit length, period, and algorithm, it's perfect for secure 2FA testing, temporary access setups, and quick authentications without compromising your secret key.

Command line Google Authenticator alternative. Or, Command line Script for managing 2FAs.

🔑 Command-line tool for managing Time-based One-Time Passwords (TOTPs).

Web-App to share TOTP with a group of people.

Generates TOTP tokens in the browser

Java implementation of TOTP

Get TOTP Codes from Ente Auth using Raycast

OTPLib Delphi Library

FLink TOTP a generator of Family link codes using TOTP generation.

Time based OTP (TOTP) generation for 2-factor authentication like Google Authenticator without backend